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TransformRec: User-Centric Recommender System for e-Commerce Using Transformer
Kyoung Jun Lee,Yujeong Hwangbo,Hokyoung Jung,Baek Jeong,Jong Il Park 한국지능정보시스템학회 2022 한국지능정보시스템학회 학술대회논문집 Vol.2022 No.6
We propose a new User-Centric recommender system using Transformer model called TransformRec, which uses receipt data without personal information and identity and considers only the relationships between tokenized product names. TransformRec recommends a product based on its most recent receipt, which includes product names. Although a receipt includes a product that the Transformer has not learned, TransformRec can recommend a real product that is considered as most relevant to the user’s last purchase. We used two commercial datasets, an e-commerce dataset and Instacart dataset, and compared the performances of TransformRec, TransformRec without tokenizing, and Word2Vec. The experimental results demonstrated that the performance of TransformRec is superior to that of the other two models. Thus, we conclude that it is possible to recommend a product without using user identity or demographic information with higher performances. In addition, we confirmed that reflecting the relationship among tokens can improve recommendation performance.
An Mi-Jin,Lee Hyun Min,Kim Chul-Hong,Shin Geun-Seup,Jo Ah-Ra,Kim Ji-Young,Kim Mi Jin,Kim Jin Ho,Park Jinhong,Hwangbo Yujeong,Kim Jeongkyu,Kim Jung-Woong 한국유전학회 2023 Genes & Genomics Vol.45 No.4
Background The transcription factor orthodenticle homeobox 2 (OTX2) has critical functions in brain and eye development, and its mutations in humans are related to retinal diseases, such as ocular coloboma and microphthalmia. However, the regulatory mechanisms of OTX2 are poorly identified. Objective The identification of JNK1 as an OTX2 regulatory protein through the protein interaction and phosphorylation. Methods To identify the binding partner of OTX2, we performed co-immunoprecipitation and detected with a pooled antibody that targeted effective kinases. The protein interaction between JNK1 and OTX2 was identified with the co-immunoprecipitation and immunocytochemistry. In vivo and in vitro kinase assay of JNK1 was performed to detect the phosphorylation of OTX2 by JNK1. Results JNK1 directly interacted with OTX2 through the transactivation domain at the c-terminal region. The protein–protein interaction and co-localization between JNK1 and OTX2 were further validated in the developing P0 mouse retina. In addition, we confirmed that the inactivation of JNK1 K55N mutant significantly reduced the JNK1-mediated phosphorylation of OTX2 by performing an immune complex protein kinase assay. Conclusion c-Jun N-terminal kinase 1 (JNK1) phosphorylates OTX2 transcription factor through the protein–protein interaction.